<h1>Reliability of a test</h1>

<p><b><u>Is our test <u>reliable</u>?</u></b></p>

<p>At the time of writing the questions, the teacher should first establish the level of demand, being always consistent with the level of difficulty of the content taught. A review of "Introduction to Physics" can contain excellent questions about reliability, but it will be difficult to fit into the course "Quantum Physics II" (the same could be said in the opposite case). The reason is simple: if a question is extremely easy (difficult), it is expected that all the guess right (fail) and therefore does not help to distinguish the level of each student. From such a question would say that it is not discriminatory and therefore unhelpful.</p>
